Gold-leaf condenser.



PATENTBD AUG. 16, 1904.

J. D. FORD'. GOLD LEAF CONDENSER.

APPLICATION FILED MAY 16, 1904.

N0 MODEL.

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N VE N 7019 JZzmes .2. Ford A 7TOHNE Y8 Patented August 1 6, 1904.

PAT NT OFFICE.

JAMES DELNO FORD, OF SOh IERSET, OHIO.

GOLD-LEAF CONDENSER.

SPECIFICATION forming part of Letters Patent N0. 767,744, dated August 16, 1904. Application filed May 16, 1904. Serial No. 208,144. (No model.)

To all whom it may concern;

Be it known that I,.JAMES DELNO FORD, a citizen of the United States, residing at Somerset, in the county of Perry and State of Ohio, have made certain new and useful Improvements in Gold-Leaf Condensers, of which the following is a specification.

My invention is an improvement in dental appliances, being in the nature of a condenser for the gold-foil used in fillings; and the invention consists in certain novel constructions and combinations of parts, as will be hereinafter described and claimed.

view of an apparatus embodying my invention. Fig. 2 is a vertical longitudinal section of the same. Fig. 3 is a detail perspective view of one of the sections of the apparatus. Fig. 4 is a detail perspective view of theother section of the apparatus. Fig. 5 is a sectional view showing the parts inverted from the position shown in Fig. 2, and Fig. 6 shows a somewhat-difierent form of stop for limiting the degree to which the gold may be condensed.

It is deemed desirable in many instances to form the leaf of gold-foil into a bar, and frequently it is desired to make the bars in different sizes; and one object of my invention is to provide the one apparatus which can be utilized for producing two sizes of bars and which can be utilized in producing more than two sizes of bars by providing extra sections of the form shown in Fig. 4 of the accompanying drawings. In securing these results I provide a condenser which comprises two sections slidable relatively to each other and pro vided with opposing shoulders and means for varying the exposed or operating surface of one of the shoulders, whereby it may be con-- formed to the extent of the opposing shoulder, and in the construction shown I arrange for operating the means for varying the exposed or operating surface of one shoulder by the other shoulder, as will be more fully described.

As shown, the apparatus comprises a section A, as shown in Fig. 3, and a section B, as shown in Fig. 4, these sections carrying the shoulders which oppose each other in the operation of condensing the gold. The section A comprises a base-plate A, provided at about its middle with an upwardly-projecting transversely-extending flangeA ,for1ning the shoulder which cooperates with the shoulder on the section B in the operation of condensing the g operation. 'As shown, the side flanges A in- In the drawings, Figure l is a perspective cline upwardly from one end, a, toward the shoulder-flange A and extend thence at a uniform heightto their opposite ends, a. A spring packing-plate A is held at one edge, (6*, to the base-plate A and is movable at its other edge, (0 close to the operating-surface of the shoulder or flange A resting normally in the position shown in full lines, Fig. 2, near the upper edge of saidv shoulder and adapted to be depressed to the position indicated in dotted lines in said Fig. 2 by the operating-should'er of the slide B, as will be understood from the dotted lines in said Fig. 2. By this means the spring packing-plate is moved relatively to the operating-shoulder of the section A in such manner as to vary the exposed or operating surface of such shoulder, whereby I am able to secure by the use of the section A and a proper cooperating section or sections bars of diflerent sizes from the leaves of foilgold, This idea of varying the exposed or operating surface of one of the shoulders in order that it may conform to the extent of the opposing shoulder is an important feature of my invention, and I find in practice that it operates to advantage with an operating-section, such as shown in Fig. 4 of the drawings. This section B has abody or handle portion B, made of a length to rest at its ends upon the side flanges A of the section A, and has at its opposite edges the projecting flanges B and B, one of which forms a shoulder to oppose the shoulder A of the section A in the operation of the invention, while the other or opposite flange B or B operating between the side flanges A between the flange A and the edge a of the baseplate A, aids in guiding the section B in its movements relatively to the section A from the position shown in full lines, Fig. 2, to the position indicated in dotted lines in the same figure. vlt will also be noticed that I make the flanges B and B of different heights, so that the flange B may be adjusted to serve as one of the operating-shoulders to produce in connection with the flange A a bar of a given size, while the shoulder B may be employed for producinga largerbar, if desired, and by providing two or more sections B with flanges of different heights bars of any desired size may be produced.

' In operation the leaf may be placed on the spring packing-plate A and the section B be applied, as shown in Fig. 2, and then moved from the positions shown in full lines in said figure to that indicated in dotted lines, when the shoulder B opposing the shoulder A will condense the gold into aflat bar of a width equal to the height of the shoulder B, the spring packing-plate yielding to the pressure of the shoulder B and being depressed thereby to the dotted-line position shown in Fig. 2, it being understood that the packingplate will readily adjust by its resilience to the full-line position shown in Fig. 2 when the pressure of the slide B is removed.

It is preferred to curve the ends of the flanges B and B slightly inward at b and I), as best shown in Fig. 4. The purpose of curving the ends of the flanges B and B is to prevent the complete condensing of the gold, as well as to regulate the degree to which the gold is condensed. By turning the ends out straight the gold may be condensed to a greater degree, while by bending such ends in the complete condensing of the gold may be perfected and the degree to which the gold is condensed may be regulated to suit the operator. Similar results might be secured by providing set-screws at the opposite ends of the flange A, as will be understood from Fig. 6 of the drawings.

The apparatus may preferably be employed in the arrangement shown in Fig. 2, or may be inverted to the position shown in Fig. 5, in which the section A is uppermost.

Having thus described my invention, what I claim as new, and desire to secure by Letters Patent, is

1. A gold-leaf condenser comprising two sections slidable relatively to each other and provided with opposing shoulders and means for varying the exposed or operating surface of one of the shoulders, whereby it may be conformed to the extent of the opposing shoulder.

2. A gold-leaf condenser comprising two sections slidable relatively to each other and having opposing shoulders and means ar ranged for operation by one of the shoulders whereby to vary the exposed or working surface of the other shoulder.

3. A gold-leaf condenser comprising two sections slidable one along the other, and having opposing shoulders, one of the sections having a spring packing-plate which is pressed upon and arranged to be compressed by the shoulder of the other section.

4. A gold-leaf condenser comprising two sections slidable one along the other, and provided with means for condensing the gold and with a spring packing-plate.

A gold-leaf condenser comprising two sections slidable relatively and provided with opposing shoulders and a spring packing-plate which is pressed upon and arranged to be operated by one of the opposing shoulders.

6. A gold-leaf condenser comprising two sections slidable'relatively to each other and provided with opposing shoulders and means on one of the shoulders for limiting the extent to which the gold may be condensed.

7. A gold-leaf condenser consisting of a section having a base-plate, side flanges and a transverse operating-shoulder and a spring packing-plate operating at its movable edge adjacent to said operating-shoulder, and a second section bearing against the side flanges of the first section and having a shoulder opposing that of the first section and arranged to operate the spring packing-plate, substantially as set forth.

8. A gold-leaf condenser, comprising a section having. a transverse operating-shoulder and side flanges, and a section having a shoulder to oppose the shoulder of the first section and also provided with a second shoulder operating as a guide for its section in the operation of condensing the gold.

9. In a gold-leaf condenser, a section comprising a base-plate, a transverse operatingshoulder thereon, and a spring packing-plate movable alongside said shoulder, whereby the exposed or operating surface of the shoulder may be varied to conform to the extent of an opposing shoulder.

10. An apparatus comprisinga section having a shoulder against which the gold may be condensed, and a second section comprising a body portion and opposite shoulder portions on said body portion, and adapted to be operated in connection with the shoulder of the first section, substantially as set forth.

11. In a gold-leaf condenser, a section provided with a flange adapted to serve as an operating-shoulder and having its ends turned inwardly, and a section having a shoulder to cooperate with said first section, substantially as set forth.

J AMES DELNO FORD.

itnesses:

C. E. LOVE, U. K. EssINe'roN.

Too 

